Improvement in brake reaction movements



H. B. MARTiN.

Brake Reactio/n Novemens.

Patentedjune17,1873.

QSI 9% Q h UNITED STATES PATENT OEEIcE.

HORACE B. MARTIN, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN BRAKE REACTION IVIOVEMENTS.

Specification forming part of Letters Patent N0. 140,057, dated J une 1'7, 1873 application filed October 1, 1872.

To all whom tmay concern:

Be it known that I, HORACE B. MARTIN, of San Francisco, State of California, have-invented a Brake Reaction Movement, of which the following is a specification:

The object of this invention is to enable the operator to graduate the speed of machinery at will, to change motion from one part to an- Fig. 2,.in whicha represents a shaft with brake-wheel and bevel-gear di keyed fast, and wheel b and bevel-disk d2, witlrpulley f attached, running looselylthereon. b isa pulley or wheel running loosely on shaft a between fixed disk d1 and loose disk d2, with two transverse bevel- Wheels, c c, contained and running within it, as shown, serving as intermediates to enable wheel b to engage with disks d1 and d2. c c represent two bevel-wheels contained within, and running loosely on, shafts set radially to Wheel b, as shown,and engaging at opposite points," and equidistant from the center of shaft a, with the two disks d1 and d2; d1, bevel disk keyed fast on shaft a; d2, bevel disk running loosely on shaft a; c, break-wheel keyed on shaft a 5 j', pulley from which to convey motion to machinery, running loosely on shaft a, but attached to, and running with, loose disk d2; g, set-screw to give contact to the parts when operated by friction; h, brake engagingwith friction-Wheel c.

Connect the power by belt or gearing with wheel brat its perephery, and motion will be imparted equally to disks d1 and d2, if each offer equal resistance. Now, if brake h be applied to di, the speed of cl2 will be increased, and that of d1 will be corespondingly diminished, and if brake h be fully set, di will stop, and d2 will run at double the speed of shaft a, and vice versa; and in a traction-engine in passing round a curve each driving-wheel will pull equally, though traveling at different rates of speed.

I claim as my invention- The brake reaction movement, substantially as described, consisting of wheel b with the contained transverse wheels c c, disks d1 d2, wheels e and f, and brake 7L, as and for the purposes specified.

HORACE B. MARTIN.

Witnesses:

HENRY A. NrsBET, J. B. S. LEssvoIND. 

